Do I Need A Bigger Turbo(power goals has changed)

[ExtremeTurboSystems]

Still a big fan of the Precision turbo option. It is a bolt on option (can have it waste gated off the O2 housing) and is the cheapest priced if your talking new turbos. used to used the precision is equal in price to the Holset. FP is also a great option. They make some of the most widely used bolt on DSM turbos and have a great track record. You will be happy with either precision or FP. I am just not a fan of the bolt on housing.

 

[Enraged78]

My 2 cents (if you want to stay DSM housing)

FP manifold
FP Green XL with the 8cm housing
Tial 38mm MVS (Punishment Racing o2 housing)
FP intake pipe
DSMLink v3 setup on SD
FP2 cams

Ok, so I promote the isht outta FP stuff, but hey, when something works, people notice.

Great list. I'd throw a Magnus intake manifold and bigger throttle body in there as well.

OP: Kelfords 272's are great cams, but you have springs and retainers, so 288's would be an option. It's just giving you an easier path to 400WHP. The FP manifold is also amazing.

Or, instead of all of this, you could just run Meth, or E-85, or an E-85 blend.

 

[spadepro22]

Well it seems we have the turbos nailed down and they will reach the 400whp. Lets talk spool since this is a dd/street car.

 

[awdtalon4451]

Great thread guys, killer info floating around in here. Im also on a 400hp mission, Ill be following this

 

[spadepro22]

Well I've been researching and It seems I might have trouble getting there with the hx35 with the bep housing restricting the turbo. What do you guys think about me keeping the 20g and going meth/water or spending the money on the hx35 and whatever 93 pump gets, it gets. I just really don't want the hassle of fooling with meth.

So let me ask where do you guys think I'd be with meth/water on the bastard 20g vs just pump 93o the hx35. Then I hear the 8 blade is better for lower boost, is that correct? Either setup is only going to see a max of 25psi.

 

[spadepro22]

Well my build didn't work out, and I'm back to the drawing board with a new builder and hd1400s in a 6 bolt and ported head and a couple more goodies. No one ever replied to the last post in this thread so I'll ask again since my goal is still pretty much the same.

Hx-35 on pump 93 or Bastard 20g with meth/water to get to the 400whp mark.

 

[untouchablecc]

Im just curious as to what your compression ratio is going to be? I know you listed the wiseco eagle combo. I have that and I was running a Holset H1C (old school hx35) and I was spooling that thing like a 16g with 9:1 compression. I had plenty of off boost power and a stout power band with a 12cm exhaust housing, much larger then what your trying to run. I could pull up the mountains out here in 5th gear no problem at 2500 rpm. If your going 9:1 why not have your 20g changed back to a td06 and get the max airflow you can out of it. Im sure you would spool it like a beast if your going higher on the compression. If it doesnt work out and you dont like your dyno number then sell it. 20gs fetch a pretty penny still and thats how the old heads in the dsm game were laying down 400hp numbers and track time back in the day. Just a thought. Instead of throwing a ton of money at it to try and do the same thing you could do if you just made your turbo flow the max it can. If you have money to throw around then go one of the other 3 routes you were looking at. Id try the 20g on a built motor.

 

[spadepro22]

Im just curious as to what your compression ratio is going to be? I know you listed the wiseco eagle combo. I have that and I was running a Holset H1C (old school hx35) and I was spooling that thing like a 16g with 9:1 compression. I had plenty of off boost power and a stout power band with a 12cm exhaust housing, much larger then what your trying to run. I could pull up the mountains out here in 5th gear no problem at 2500 rpm. If your going 9:1 why not have your 20g changed back to a td06 and get the max airflow you can out of it. Im sure you would spool it like a beast if your going higher on the compression. If it doesnt work out and you dont like your dyno number then sell it. 20gs fetch a pretty penny still and thats how the old heads in the dsm game were laying down 400hp numbers and track time back in the day. Just a thought. Instead of throwing a ton of money at it to try and do the same thing you could do if you just made your turbo flow the max it can. If you have money to throw around then go one of the other 3 routes you were looking at. Id try the 20g on a built motor.

Compression is 8:5.1

 

[ZenkaiRacerDsM]

I would just try the 20G. That's what I'm doing. And I would love to hit 400fwhp on mine with a stock 7 bolt with FP2 cams (when I put them in).

Right now I running 25psi on 91 octane with 14 degrees of timing. I think once I put my cams in it and fine tune some more it will be close to my goal. I know there is still a lot left on the table in terms of my tune.

I am running one of those billet GTX style extended tip compressor wheels though.

I think you should give the 20G a chance, if you dont make it there then you can change the stuff. Hey, it'll save you money if it works.

As far as spool, the 20G with the 05H hotside is going to outspool any other turbo mentioned in this thread. Mine spools near identical to the 18G it used to be.

 

[spadepro22]

Yea I've ran it and I love the spool. Just reconsidering because the motor is out of the car and it would save me money now if I decided to go Hx-35.

 

[swifteagle]

I had a stock rebuilt 6bolt with bse running a big 16g on 22-23 psi making 360 fwhp. So I think you can do it with the 20g.

 

[spadepro22]

Anybody use the bastard 29g with meth/water? How would that compare to the hx 35 on pump?

 

[awdtalon4451]

Anybody use the bastard 29g with meth/water? How would that compare to the hx 35 on pump?

Why not just run E85? Meth is terrible for your car. And is that a serious question pertaining to which is better ?
The HX35 in the a 12cm^2 TS housing will SMASH (if i could bold that word i would) a Bastard 20g on pump. I cant speak for the BEP .55 A/R housing though. Whats a Bastard good for 400-450hp if your lucky? The hx35 in the stock housing with a non-divided mani has seen 132mph trap speeds=roughly 600whp. Search engines are your friend

 

[awdtalon4451]

Sorry spade I didnt know this was your thread my apologies! If I were you id pick the Holset with the stock TS housing hands down. I was running a Frank 3 20g which is basically an old school FP green and if im lucky would have got me to 450whp. Im leaning very hard on Holset for turbo on my new build. I wouldnt chance not hitting your numbers. Do it once and leave room to grow :thumbup: just my opinion though.

 

[awdtalon4451]

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I stand corrected. Here you go bro! I dug this up from my friend luis. Stock 6-bolt, HKS 272s, full supporting mods, old school FP Green at 18psi on E-85. 422whp and 376tq I believe. Needless to say E-85 is a game changer.

 

[spadepro22]

Why not just run E85? Meth is terrible for your car. And is that a serious question pertaining to which is better ?
The HX35 in the a 12cm^2 TS housing will SMASH (if i could bold that word i would) a Bastard 20g on pump. I cant speak for the BEP .55 A/R housing though. Whats a Bastard good for 400-450hp if your lucky? The hx35 in the stock housing with a non-divided mani has seen 132mph trap speeds=roughly 600whp. Search engines are your friend

I know which is better, but in different setups is what I'm getting at. The thing is I'm staying bolt on and E-85 isn't available to me.

If I were to run the 20g with meth/water, would it be better than the the hx-35 in the bep housing on pump 93? Just trying to get a comparison.

 

[xxNocturnalxx]

I expect to hit 400whp on my 20g on just pump gas. I think you can get more out of it.